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Figure 4 Box whisker plot (median and interquartile range) of intravascular ultrasound findings at follow-up. (A) In-segment lumen volume. (B) In-stent lumen volume. (C) Neointimal proliferation volume. The median test was used to compare results between the two arms. The paired sample sign test was used to assess changes within each arm. +p < 0.05 (stent group, post-procedure vs. follow-up [FU]). BA = balloon angioplasty (blue); PRE = before the procedure; POST = after intervention; SES = sirolimus-eluting stents (red).
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